/* Portal pages only: shared typography, header and footer. */
.lab-home { --ink: #252720; --paper: #f7f7f0; --line: #d9dbd0; --muted: #65685f; --yellow: #e5f45d; margin: 0; background: var(--paper); color: var(--ink); font-family: Arial, "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif; }
.lab-home *, .lab-home *::before, .lab-home *::after { box-sizing: border-box; }
.lab-home h1, .lab-home h2, .lab-home h3, .lab-home p { margin: 0; }
.lab-home a { color: inherit; }
.lab-home button { font: inherit; }
.lab-home a:focus-visible, .lab-home button:focus-visible { outline: 3px solid #65740c; outline-offset: 5px; }
.lab-home ::selection { background: var(--yellow); color: var(--ink); }
.lab-wrap { width: min(1240px, calc(100% - 96px)); margin-inline: auto; }
.lab-skip { position: fixed; left: 20px; top: -100px; z-index: 200; background: var(--yellow); padding: 15px; }
.lab-skip:focus { top: 12px; }
.lab-header { height: 96px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); padding-right: 36px; }
.lab-brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; font-size: 21px; font-weight: 800; letter-spacing: -.06em; white-space: nowrap; }
.lab-brand-mark { width: 40px; height: 40px; flex: 0 0 auto; object-fit: contain; border-radius: 9px; }
.lab-nav { display: flex; align-items: center; gap: 34px; padding-right: 8px; font-size: 13px; font-weight: 700; }
.lab-nav a { text-decoration: none; position: relative; padding-block: 8px; }
.lab-nav a::after { content: ""; position: absolute; bottom: 0; left: 0; width: 100%; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: left; transition: transform .2s; }
.lab-nav a:hover::after { transform: scaleX(1); }
.lab-footer { background: #272a23; color: #f7f7f0; padding-block: 42px 25px; }
.lab-footer-main { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.lab-footer .lab-brand-mark { color: var(--yellow); }
.lab-footer nav { display: flex; flex-wrap: wrap; gap: 23px; font-size: 11px; }
.lab-footer nav a { text-decoration: none; color: #d5d8cd; }
.lab-footer nav a:hover { text-decoration: underline; }
.lab-footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 40px; border-top: 1px solid #505348; padding-top: 20px; font-size: 10px; color: #aeb4a3; }
.lab-footer-bottom > span { font-family: "Courier New", monospace; letter-spacing: .1em; }
@media (min-width: 1500px) { .lab-header { padding-right: 0; } }
@media (max-width: 1100px) {
  .lab-wrap { width: calc(100% - 64px); }
  .lab-nav { gap: 22px; }
}
@media (max-width: 760px) {
  .lab-wrap { width: calc(100% - 40px); }
  .lab-header { height: 80px; padding-right: 52px; }
  .lab-brand { font-size: 19px; gap: 9px; }
  .lab-brand-mark { width: 34px; height: 34px; }
  .lab-nav { display: none; }
  .lab-footer-main { align-items: flex-start; flex-direction: column; gap: 26px; }
  .lab-footer nav { gap: 16px 20px; line-height: 1.8; }
  .lab-footer-bottom { margin-top: 28px; font-size: 9px; }
}
@media (prefers-reduced-motion: reduce) {
  .lab-home *, .lab-home *::before, .lab-home *::after { transition: none !important; scroll-behavior: auto !important; }
}